A17951
Acetoin
May exist as crystalline dimer
Synonym(s):
3-Hydroxy-2-butanone, Acetylmethylcarbinol
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All Photos(4)
About This Item
Linear Formula:
CH3COCH(OH)CH3
CAS Number:
Molecular Weight:
88.11
Beilstein:
385636
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
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Quality Level
Assay
≥98.0% (GC)
form
crystals
refractive index
n20/D 1.417 (lit.)
bp
148 °C (lit.)
mp
15 °C (monomer)
90 °C (dimer) (lit.)
density
1.013 g/mL at 25 °C (lit.)
food allergen
no known allergens
storage temp.
2-8°C
SMILES string
CC(O)C(C)=O
InChI
1S/C4H8O2/c1-3(5)4(2)6/h3,5H,1-2H3
InChI key
ROWKJAVDOGWPAT-UHFFFAOYSA-N
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Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Dam. 1 - Flam. Liq. 3
Storage Class Code
3 - Flammable liquids
WGK
WGK 1
Flash Point(F)
118.4 °F - closed cup
Flash Point(C)
48 °C - closed cup
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Regulatory Information
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Zhen Liu et al.
Bioresource technology, 102(22), 10741-10744 (2011-09-29)
Production of highly pure (2S,3S)-2,3-butanediol ((2S,3S)-2,3-BD) and (3S)-acetoin ((3S)-AC) in high concentrations is desirable but difficult to achieve. In the present study, glucose was first transformed to a mixture of (2S,3S)-2,3-BD and meso-2,3-BD by resting cells of Klebsiella pneumoniae CICC
Pieter Moons et al.
Applied and environmental microbiology, 77(10), 3422-3427 (2011-03-29)
During fermentation of sugars, a number of bacterial species are able to switch from mixed acid production to acetoin and 2,3-butanediol production in order to avoid lethal acidification of their environment, although the regulation of this switch is only poorly
Matthew J Stasiewicz et al.
Applied and environmental microbiology, 77(15), 5294-5306 (2011-06-15)
The organic acids lactate and diacetate are commonly used in combination in ready-to-eat foods because they show synergistic ability to inhibit the growth of Listeria monocytogenes. Full-genome microarrays were used to investigate the synergistic transcriptomic responses of two L. monocytogenes
Jian-An Sun et al.
Bioresource technology, 119, 94-98 (2012-06-26)
Cofactor engineering was employed to enhance production of acetoin by Serratia marcescens H32. 2,3-Butanediol was a major byproduct of acetoin fermentation by S. marcescens H32. In order to decrease 2,3-butanediol formation and achieve a high efficiency of acetoin production, nox
Zijun Xiao et al.
Critical reviews in microbiology, 33(2), 127-140 (2007-06-15)
Acetoin is an important physiological metabolite excreted by many microorganisms. The excretion of acetoin, which can be diagnosed by the Voges Proskauer test and serves as a microbial classification marker, has its vital physiological meanings to these microbes mainly including
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